Motorola M68EM05A24 User manual

MOTOROLA
SEMICONDUCTOR
USER’S MANUAL
cMOTOROLA INC., 1994; All Rights Reserved
HC05A24EMUM/D
July, 1996
HC05A24
EMULATOR MODULE
USER’S MANUAL
First Edition

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HC05A24EM USER”S MANUAL MOTOROLA
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CONTENTS
CHAPTER 1 INTRODUCTION ........................................................................ 1-1
1.1 Development Systems .................................................................................. 1-1
1.1.1 Motorola Modular Development System (MMDS05) ...................... 1-1
1.1.2 M68HC05EVS Evaluation System (HC05EVS) ............................... 1-2
1.2 EM Layout ................................................................................................... 1-3
1.3 Target Connectors And Cable Information................................................... 1-4
CHAPTER 2 MMDS05 CONFIGURATION AND OPERATION .................... 2-1
2.1 Setting A24EM Jumper Headers ................................................................. 2-1
2.1.1 Reset Select Header (P4) ................................................................... 2-2
2.1.2 COP Disable Header (P5) .................................................................. 2-2
2.1.3 Clock Source Select Header (P6) ...................................................... 2-3
2.1.4 Clock Divider Header (P9) ................................................................ 2-3
2.2 Installing Personality And Help Files .......................................................... 2-4
2.2.1 Personality File .................................................................................. 2-4
2.2.2 Help File ............................................................................................ 2-4
2.3 Remaining System Installation .................................................................... 2-5
CHAPTER 3 HC05EVS CONFIGURATION AND OPERATION ................... 3-1
3.1 Setting A24EM Jumper Headers ................................................................. 3-1
3.1.1 Reset Select Header (P4) ................................................................... 3-1
3.1.2 COP Disable Header (P5) .................................................................. 3-2
3.1.3 Clock Source Select Header (P6) ...................................................... 3-3
3.1.4 Clock Divider Header (P9) ................................................................ 3-3
3.2 EVS Limitations ......................................................................................... 3-4
3.3 Logic Analyzer Connector P1 ...................................................................... 3-5
3.4 Remaining System Installation ................................................................... 3-7

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1FIGURES
Figure Page
1-1 HC05A24 Emulator Module ........................................................................ 1-3
1-2 Connector P7 Pin Assignment ..................................................................... 1-4
1-3 Connector P8 Pin Assignment ..................................................................... 1-5
1-4 Target Cable and Head Assembly ................................................................ 1-7
3-1 Connector P1 Pin Assignment ..................................................................... 3-5
TABLES
Table Page
1-1 Parts required to form a target cable assemble for A24EM ......................... 1-6
3-1 Logic Analyzer Connector P1 Signal Descriptions ..................................... 3-6

HC05A24EM USER’S MANUAL MOTOROLA
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CHAPTER 1 INTRODUCTION
This user’s manual explains connection, configuration, and operation
information specific to the M68EM05A24 Emulator Module (hereafter
referred to as A24EM). The A24EM makes possible emulation and
debugging of MC68HC705A24/MC68HC05A16 microcontroller unit
(MCU) based target systems.
The A24EM can be part of two development systems. This chapter
describes those systems and explains the layout of the A24EM.
1.1 DEVELOPMENT SYSTEMS
Your A24EM can be part of two Motorola development tools: the HC05
Motorola Modular Development System (MMDS05) or the
M68HC05EVS Evaluation System (HC05EVS).
1.1.1 Motorola Modular Development System (MMDS05)
The MMDS05 is an emulator system that provides a bus state analyzer
and real-time memory windows. The unit’s integrated design environ-
ment includes an editor, an assembler, user interface, and source-level
debug. A complete MMDS05 consists of:
•a station module -- the metal MMDS05 enclosure, containing the
control board and the internal power supply. Most system cables
connect to the MMDS05 station module. (The cable to an optional
target system, however, runs through an aperture in the station mod-
ule enclosure to connect directly to the emulator module.)
•an emulator module (EM) -- such as the A24EM: a printed circuit
board that enables system functionality for a specific MCU. The EM
fits into the station module through a sliding panel in the enclosure
top. The EM has connectors for the target cable.
•two logic clip assemblies -- twisted-pair cables that connect the sta-
tion module to your target system, a test fixture, a clock, or any other
circuitry useful for evaluation or analysis. One end of each cable
assembly has a molded connector, which fits into station module pod
A and pod B. Leads at the other end of each cable terminate in
female probe tips. Ball clips come with the cable assemblies.
•a 9-lead RS-232 serial cable -- the cable that connects the station
module to the host computer RS-232 port.
•a 9 to 25-pin adapter -- a moulded assembly that lets you connect
the 9-lead cable to a 25-pin serial port.
•system software -- software, on 3-1/2 inch diskettes.

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1•MMDS05 documentation -- an MMDS05 operations manual
(MMDS05OM/D) and the appropriate EM user’s manual.
As mentioned, your A24EM gives the MMDS05 the ability to emulate
the MC68HC705A24 and MC68HC05A16 MCUs. By substituting a
different EM, you can enable your MMDS05 to emulate an MCU of a
different series. (Your Motorola representative can explain all the EMs
available.)
Chapter 2 explains how to configure and use your A24EM as part of an
MMDS05 system. For information about MMDS05 software or the sta-
tion module, see the MMDS05 operations manual. For layout and con-
figuration information pertaining to a different EM, see the
corresponding EM user’s manual.
1.1.2 M68HC05EVS Evaluation System (HC05EVS)
An HC05EVS is an economical, two-board tool for designing, debug-
ging, and evaluating target systems based on an MC68HC05 MCU. A
complete HC05EVS consists of:
•a platform board (PFB) -- the bottom board, which supports the
emulator module. The platform board has connectors for power and
for the terminal or host computer.
•an emulator module (EM) -- such as the A24EM: a printed circuit
board that enables system functionality for a specific MCU. The EM
fits onto the PFB. The EM has connectors for a target cable and a
cable to a logic analyzer.
•an RS-232 serial cable -- the cable that connects the PFB to the host
computer RS-232 port.
•system software -- software, on 3-1/2 inch diskettes.
•HC05EVS documentation -- an HC05EVS operations manual and
the appropriate EM user’s manual.
As mentioned, your A24EM emulates the MC68HC705A24 and
MC68HC05A16 MCUs. By substituting a different EM, you can enable
your HC05EVS to emulate an MCU of a different series. (Your Motor-
ola representative can explain all the EMs available.)
Chapter 3 explains how to configure and use your A24EM as part of an
HC05EVS system. For information about HC05EVS software or the
platform board, see the HC05EVS operations manual. For layout and
configuration information pertaining to a different EM, see the corre-
sponding EM user’s manual.

HC05A24EM USER’S MANUAL MOTOROLA
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1
1.2 EM LAYOUT
Figure 1-1 shows the layout of the A24EM. Jumper header P4 controls
the path of a target reset. Jumper header P5 can be used to disable the
internal COP of the MCU during software development. Jump header
P6 lets you select the clock-signal source. Jump header P9 selects the
internal oscillator clock divider.
Connectors P7 and P8, for a 56-pin SDIP cable assembly, (purchased
separately from the A24EM.) provide an interface to your target system.
If you install the A24EM in the MMDS05 station module, the target
cable passes through the slit in the station module enclosure. Connector
P1 connects to a logic analyzer. (Connector P1 has more significance for
an EVS system, as an MMDS05 system includes a bus analyzer.)
Expansion header connectors P2 and P3 connect together the EM and
the control board (for an MMDS05) or the EM and the platform board
(for an EVS).
P7 P8
P1
P2 P3
Figure 1-1. HC05A24 Emulator Module
P4
P6
P9
P5

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11.3 TARGET CONNECTORS AND CABLE INFORMATION
Figure 1-2 and 1-3 show the pin assignments for connectors P7 and P8.
For signal descriptions, consult the technical data book for the
M68HC05A24 MCU.
As connector P1 has more importance to an HC05EVS than to an
MMDS05, pin assignments for connector P1 are in Chapter 3.
To configure your A24EM for use as part of an MMDS05, follow the
instructions of Chapter 2. To configure your A24EM as part of an
HC05EVS, follow the instructions of Chapter 3.
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
PWM1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
P7
GND
/RESET
AD0
AD1
VDD
GND
GND
IRQ2
/IRQ
GND
PA5
PA4
PA2
PA0
PC6
PC4
PC2
PC0
GND
GND
GND
GND
GND
GND
GND
GND
GND
/IRQ1
PA7
PA6
GND
PA3
PA1
PC3
PC1
GND
GND
Figure 1-2. Connector P7 Pin Assignments
PC7
PC5

HC05A24EM USER’S MANUAL MOTOROLA
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1
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
GND1
3
5
7
9
11
13
15
17
19
21
23
27
29
31
33
35
37
39
P8
TCAP
TCMP1
HRX
HTX
GND
HTX_CLK
PF4
PF3
PF1
PB7
PB5
PB3
PB1
GND
PE7
PE6
PE5
PE3
PE1
PE0
GND
GND
GND
HRX_CLK
PF5
GND
PF2
PF0
PB6
PB4
PB2
PB0
GND
GND
GND
PE4
PE2
GND
GND
Figure 1-3. Connector P8 Pin Assignments
25

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1To connect your A24EM to your target system via a separately pur-
chased, target cable and head assembly, follow the instructions below.
Figure 1-4 is a generic representation of a Motorola supplied target
cable assembly, which consists of a flexible cable and a SDIP target
head. Emulation of a SDIP device is achieved by fitting the SDIP target
head into the MCU socket of the target system. Table 1-1 shows the tar-
get cable and head part numbers required to form a 56-pin SDIP target
cable assembly for the A24EM.
To use a SDIP target cable, connect the large cable terminator of
M68CLB05B to M68TB05A24B56. They should be connected in such
a way that the arrow marked on the target head is pointing to the target
cable. Next, connect the small cable terminator to the A24EM target
connectors P7 and P8. The connector at the far end of the cable should
be connected to P7 and the other to P8. Plug the target head into the
MCU socket of your target system.
If you install the A24EM in the MMDS05 station module, run the target
cable through the slit in the station module enclosure.
Table 1-1. Parts required to form a target cable assembly for A24EM
Cable No. Target Head No. Notes
M68CBL05B M68TB05A24B56 56-pin SDIP cable assembly

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1
Target
Cable
Emulator
Terminator
Head
Terminator
(connects to
target head)
Target Head
(Connects to EM
target conectors)
(Plugs to target system MCU
socket or surface mount adapter)

HC05A24EM USER’S MANUAL MOTOROLA
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CHAPTER 2 MMDS05 CONFIGURATION AND OPERATION
This chapter explains how to configure and use your A24EM as part of
an MMDS05. For other parts of system installation or configuration, see
the MMDS05 operations manual (MMDS05OM/D). (If you will use
your A24EM as part of an HC05EVS system, go to Chapter 3 for corre-
sponding information.)
Paragraph 2.1 explains how to set A24EM jumper headers. Paragraph
2.2 explains how to install personality and help files pertaining to the
A24EM. Paragraph 2.3 explains remaining system installation.
Note that you can configure an A24EM already installed in the
MMDS05 station module enclosure. To do so, switch off station-module
power, remove the hatch, then follow the guidance of this chapter.
CAUTION
Be sure to switch off power if you reconfigure an
installed EM. Reconfiguring EM jumper headers with
power left on can damage MMDS05 circuits.
2.1 SETTING A24EM JUMPER HEADERS
Your A24EM has four jumper headers, P4, P5, P6 and P9. Paragraphs
2.1.1.through 2.1.4 explain how to configure these headers.

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22.1.1 Reset Select Header (P4)
Jumper header P4 controls the path of a target reset. The diagram below
shows the factory configuration: the fabricated jumper between pins 1
and 2 enables your software to control resets. This is the only correct P4
configuration for an A24EM that is part of an MMDS05.
NOTE
The P4 pins 2 and 3 configuration is not correct for an
A24EM that is part of an MMDS05 system. Such a con-
figuration would interfere with correct operation of the
RESETIN and RESETOUT commands.
2.1.2 COP Disable Header (P5)
Jumper header P5 allows the user to enable/disable the internal COP
during software development. The diagram below shows the factory
configuration: the fabricated jumper between pins 1 and 2 enables the
internal COP. To disable it, remove the fabricated jumper between pins
1 and 2. The jumper setting is sampled once on power on or reset.
Changing the jumper setting after reset will have no effect on the inter-
nal COP.
1
2
3
P4
EVS
TARGET
FABRICATED
JUMPER
TARGET RESET
DRIVEN FROM
1
2
P5
OPEN = COP OFF
FABRICATED
JUMPER
COP DISABLE
CLOSE = COP ON

HC05A24EM USER’S MANUAL MOTOROLA
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2.1.3 Clock Source Select Header (P6)
Jumper header P6 determines the source of the clock signal. The dia-
gram below shows the factory configuration: the fabricated jumper
between pins 2 and 3 selects the A24EM canned oscillator clock source.
Alternatively, you may use a clock source originating from the control
board. To do so, reposition the P6 jumper between pins 1 and 2, then use
the MMDS05 OSC command to select a frequency.
2.1.4 Clock Divider Header (P9)
Jumper header P9 determines which internal clock divider of the MCU
to use on power up or reset. The diagram below shows the factory con-
figuration: the fabricated jumper between pins 1 and 2 selects the divide
by two MCU clock divider. This is the correct configuration for a 4 MHz
clock source. If a 16 MHz clock source is used. The user must remove
the fabricated jumper between pins 1 and 2 to select the divide by eight
MCU clock divider.
1
2
3
P6
XTAL
MMDS05
FABRICATED
JUMPER
1
2
P9
OPEN = OSC/8
FABRICATED
JUMPER
INTERNAL
CLOCK DIVIDER
CLOSE = OSC/2

HC05A24EM USER’S MANUAL
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22.2 INSTALLING PERSONALITY AND HELP FILES
A24EM software, on a 3.5” diskette, consists of these files (where xx
denotes a version number):
• 00309Vxx.MEM Personality file (Each personality file cus-
tomizes the MMDS05 host software for one
or more specific MCUs.)
• 00309Vxx.HLP HELP windows specific to the personality
file.
Note that files 00309Vxx.MEM and 00309Vxx.HLP are specific to the
A24EM. You will receive corresponding personality and help files for
each additional EM you order.
2.2.1 Personality File
Installation of the personality file (00309Vxx.MEM) consists of copy-
ing the file from the distribution diskette to a hard disk. Personality files
are usually installed in the directory from which the MMDS05 software
is executed. If a personality file is not located in that directory, the
MMDS05 software displays a window with which the user can search
the directory structure to find the correct file.
More than one personality file can be installed; the MMDS05 operating
software automatically loads the personality file that corresponds to the
currently-connected EM board upon powerup.
2.2.2 Help File
Installation of the help file (00309Vxx.HLP) consists of copying the file
from the distribution diskette to a hard disk. This file must be installed
in the directory from which the MMDS05 software is executed. If it is
not located in that directory, no help information pertaining to the
MC68HC05A24 MCU will be displayed when the CHIPSINFO com-
mand is used.

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2
2.3 REMAINING SYSTEM INSTALLATION.
When you have configured headers P4, P5, P6 and P9, you are through
with A24EM configuration:
• To install the A24EM in an MMDS05 station module, remove the
panel from the station-module top. Fit together EM connectors P2
and P3 (on the bottom of the board) and control-board connectors
P11 and P12. Snap the mounting holes of the EM onto the plastic
standoffs. Connect the target cable, if appropriate. Replace the
panel.
• If your A24EM already is installed in the station module, reconnect
the target cable, (if necessary). Replace the panel.
At this point, you are ready to make remaining cable connections, as
necessary, and restore power. For instructions, consult the MMDS05
operations manual (MMDS05OM/D).

HC05A24EM USER’S MANUAL
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2

HC05A24EM USER’S MANUAL MOTOROLA
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CHAPTER 3 HC05EVS CONFIGURATION AND OPERATION
This chapter explains how to configure and use your A24EM as part of
an HC05EVS. For other parts of system installation or configuration, see
the HC05EVS operations manual. (If you will use your A24EM as part
of an MMDS05 system, go to Chapter 2 for corresponding information.)
Paragraph 3.1 explains how to set A24EM jumper headers. Paragraph
3.2 lists limitations on using the A24EM in an HC05EVS. Paragraph 3.3
explains pin assignments and signal descriptions for the logic analyzer
connector (P1). Paragraph 3.4 explains remaining system configuration.
Note that you can configure an A24EM already installed on the
HC05EVS platform board. To do so, disconnect platform-board power,
then follow the guidance of this chapter.
CAUTION
Be sure to disconnect power if you reconfigure an
installed EM. Reconfiguring EM jumper headers with
power left on can damage HC05EVS circuits.
3.1 SETTING A24EM JUMPER HEADERS
Your A24EM has four jumper headers, P4, P5, P6 and P9. Paragraphs
3.1.1. through 3.1.4 explain how to configure these headers.

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33.1.1 Reset Select Header (P4)
Jumper header P4 controls the path of a target reset. The diagram below
shows the factory configuration: the fabricated jumper between pins 1
and 2 enables your A24EM to reset the target when you press the user
or master reset switch.
Alternatively, you may enable the target system to reset the A24EVS. To
do so:
• Reposition the A24EM P4 jumper between pins 2 and 3, and
• Insert a fabricated jumper into platform-board header J3.
3.1.2 COP Disable Header (P5)
Jumper header P5 allows the user to enable/disable the internal COP
during software development. The diagram below shows the factory
configuration: the fabricated jumper between pins 1 and 2 enables the
internal COP. To disable it, remove the fabricated jumper between pins
1 and 2. The jumper setting is sampled once on power on or reset.
Changing the jumper setting after reset will have no effect on the inter-
nal COP.
1
2
3
P4
EVS
TARGET
FABRICATED
JUMPER
TARGET RESET
DRIVEN FROM
1
2
P5
OPEN = COP OFF
FABRICATED
JUMPER
COP DISABLE
CLOSE = COP ON

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3.1.3 Clock Source Select Header (P6)
Jumper header P6 determines the source of the clock signal. The dia-
gram below shows the factory configuration: the fabricated jumper
between pins 2 and 3 selects the A24EM canned oscillator clock source.
This is the only correct configuration for an A24EM that is part of an
HC05EVS.
NOTE
The P6 pins 1 and 2 configuration is not correct for an A24EM that is
part of an HC05EVS system.
3.1.4 Clock Divider Header (P9)
Jumper header P9 determines which internal clock divider of the MCU
to use after power on or reset. The diagram below shows the factory con-
figuration: the fabricated jumper between pins 1 and 2 selects the divide
by two MCU clock divider. This is the correct configuration for a 4 MHz
clock source. If a 16 MHz clock source is used. The user must remove
the fabricated jumper between pins 1 and 2 to select the divide by eight
MCU clock divider.
1
2
3
P6
XTAL
MMDS05
FABRICATED
JUMPER
1
2
P9
OPEN = OSC/8
FABRICATED
JUMPER
INTERNAL
CLOCK DIVIDER
CLOSE = OSC/2